Abstract: A digital audio/video (AV) file, or media file (File A) recorded at a live event using a handheld AV recording device is uploaded by a client to an audio replacement service. The audio portion of the digital AV file is of relatively low quality compared to an audio file (File B) of the live event created by sound engineers or other event personnel during the live event. File B is also uploaded to the audio replacement service. A computing device at the audio replacement service automatically identifies a segment of File B corresponding to the audio portion of File A and then creates a new, enhanced digital AV file (File C) on which the low quality audio portion of File A is replaced with the corresponding high quality segment from File B. File C is then downloaded to the client.